Finding the Fourth Proportional to 165,957,511.70, 248,936,267.55 and 79,864,069.70
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Solution
The fourth proportional to 165,957,511.70, 248,936,267.55 and 79,864,069.70 is: 119,796,104.55
Step by Step Solution
- Step 1: Write the proportion equation
165,957,511.70 : 248,936,267.55 = 79,864,069.70 : x - Step 2: Convert to fraction form
165,957,511.70/248,936,267.55 = 79,864,069.70/x - Step 3: Cross multiply
165,957,511.70x = 248,936,267.55 × 79,864,069.70 - Step 4: Simplify right side
165,957,511.70x = 19,881,063,422,471,048 - Step 5: Solve for x
x = 19,881,063,422,471,048/165,957,511.70 - Step 6: Final answer
x = 119,796,104.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.